Key Jobs Executed

Some of the key jobs executed by JNJ Machines are listed below.


GASSIFIER SHELL WEP MACHINING
CTQ: Gassifier main shell cutout machining. Weight 115MT. Complete profile made with 3D programming.



RUNNER HUB OF KAPLAN TURBINE
CTQ: Machining of concentric bores with in 50 micron. Also indexing of openings in 60 degree. For 50 MW hydro power plant.



ASH-LOCK
CTQ: Very long cycle time job where the line boring concept is used and maximum length of bore is 1.9mtr. All bores concentricity maintained with in 100 micron w.r.t to each other. Customer inspection is through FARO. IT has boring from Dia 18 to Dia 560







CONDENSER TUBE PLATE DRILLING FOR BHEL BHOPAL
CTQ: Condenser tube plate 40 mm MS + 8 mm SS cladding, dia 28.85 mm hole which requires Ra 3.2 finish, 11484 holes. For 770 MW super critical nuclear power plant.



TILE PLATE FOR ISRO - MARS MISSION
CTQ: 10mm thin aluminum sheet where after machining of 400 pockets the final thickness left was 1mm. Also we made some 1500 holes of M1 to M2.5 . Complete plate parallelism was in 20 micron.



TURNING OF SHELL OF PETROBAS
CTQ: Maximum dia job that we have done in VTL- 5400mm. Made both side lip and NUB.







TUBE SHEET
CTQ: Flatness required with in 50 micron all over.



CTQ: Very thin section requires delicate handling and machining. For this section concentricity required was with in 50 micron.



DOVE MACHINING FOR CALTIM
CTQ: Complete spherical machining, we also had to ensure that thickness to dome should not go below 120 mm at any point.







CHANNEL HEADER
CTQ: Dia 1100 Acme thread profile generation using helical programming



ROTOR GUIDE PILLAR FOR 660 MW ROTOR ASSEMBLY
CTQ: small cross section where the parallelism required with in 20 micron.







3D PROFILE WELD EDGE PREPARATION FOR MHI BOILER
CTQ:



SEAL GROOVE MACHINING FOR DOOR OF FUSION REACTOR




SEGMENT PLATE
SS 316 L 14meter Length with 14meter O.D 60 Segment Plate Machining for Nuclear Fusion Cryostat







PIPE WEP
CTQ: Pipe WEP machining with 3D programming.



SKIRT PILING CYLINDER
CTQ: We did 5 mtr long bore of dia 1800. Concentricity in 5mtr was with in 0.5mm.



COMPLETE VIEW OF HBM MACHINE



INSIDE VIEW OF VTL MACHINE







PLUMMER BLOCK ASSEMBLY COVERS FOR JSPL RAIPUR
CTQ: All fittings are push fits and assembly with Plummer block is in the scope of JNJ



PLUMMER BLOCK ASSEMBLY PLUMMER BLOCKS FOR JSPL RAIPUR
CTQ: All fittings are push fits and assembly with Plummer block is in the scope of JNJ



PARTS FOR MAIN BEARING ASSEMBLY OF FD, ID, PA FAN
CTQ:



REPAIR OF CASING FOR RELIANCE
CTQ: It was first repair kind of job where all four Pad after machining maintained with in 10 micron.



GAS TURBINE CASING FOR 220 MW POWER PLANT
CTQ: Modification of GE design casing to enhance the NTPC power plant capacity. All modification required with in 1thou.



GRINDING TABLE FOR COAL PULVERISER
CTQ: Grinding table for 32R VRM. MHI design.











LIME HYDRATOR ASSEMBLY



DRIVE END FOR LIME HYDRATOR ASSEMBLY



SS HOOD FOR LIME HYDRATOR ASSEMBLY



SS CYCLONE



FIXTURE FOR LIFTING & HANDLING OF NUCLEAR SHELL PARTS



PARTS OF FIXTURE



FAN ELEMENT CONTAINER



660MW BOILER FD FAN DEFLECTOR



MOTOR BASE FRAMES FOR ROTARY AIR PRE HEATER



MAIN BEAR ASSEMBLY PARTS FOR 1000MW FD/PA ID



FAN TRANSITION DUCT